2018-03-22 19:08 GMT+01:00 Steve Ellcey :
> I have a question about the math vector library routines in libmvec.
> If I compile a program on x86 with -Ofast, something like:
>
> void foo(double * __restrict x, double * __restrict y, double * __restrict z)
> {
> for (int i = 0; i < 1000; i++
2017-03-16 9:50 GMT+01:00 Richard Biener :
> On Wed, 15 Mar 2017, Andrew Senkevich wrote:
>
>> 2016-12-05 16:31 GMT+01:00 Andrew Senkevich :
>> > 2016-11-16 8:02 GMT+03:00 Andrew Pinski :
>> >> On Tue, Nov 15, 2016 at 9:36 AM, Andrew Senkevich
>> >&g
2016-12-05 16:31 GMT+01:00 Andrew Senkevich :
> 2016-11-16 8:02 GMT+03:00 Andrew Pinski :
>> On Tue, Nov 15, 2016 at 9:36 AM, Andrew Senkevich
>> wrote:
>>> Hi,
>>>
>>> new Intel instructions AVX512_4FMAPS and AVX512_4VNNIW introduce use
>>> of
2016-11-16 8:02 GMT+03:00 Andrew Pinski :
> On Tue, Nov 15, 2016 at 9:36 AM, Andrew Senkevich
> wrote:
>> Hi,
>>
>> new Intel instructions AVX512_4FMAPS and AVX512_4VNNIW introduce use
>> of register groups.
>>
>> To support register groups feature in in
Hi,
new Intel instructions AVX512_4FMAPS and AVX512_4VNNIW introduce use
of register groups.
To support register groups feature in inline asm needed some extension
with new constraints.
Current proposal is the following syntax:
__asm__ (“SMTH %[group], %[single]" :
2015-06-16 17:23 GMT+03:00 Joseph Myers :
> On Mon, 15 Jun 2015, Andrew Pinski wrote:
>
>> > results in asm redirection for log to __log_finite and final vector
>> > function name becomes _ZGVbN2v___log_finite.
>> >
>> > With point of view from C Library side, it reflects in addition of asm
>> > re
Hi,
Glibc 2.22 will have libm.so implemented as linker script helping to
link as needed against vector math library libmvec.so without addition
of -lmvec (for not static builds). Another words -lm is enough to link
against libmvec.so.
But g++ driver inserts -lm for linker command, gcc griver not.
Hi,
compilation with options -fopenmp -ffast-math -O1 -msse4
of the test
#pragma omp declare simd notinbranch simdlen(2)
extern double log (double);
int N = 3200;
double b[3200];
double a[3200];
int main (void)
{
int i;
#pragma omp simd
for (i = 0; i < N; i += 1)
{
b[i] = log (a[i])
2015-01-13 14:28 GMT+03:00 Jakub Jelinek :
> On Tue, Jan 13, 2015 at 02:14:30PM +0300, Andrew Senkevich wrote:
>> >> Consensus is required to commit x86_64 vector math functions by Glibc
>> >> maintainer.
>> >
>> > With the difference that b stands for
2015-01-12 19:46 GMT+03:00 Jakub Jelinek :
> On Mon, Jan 12, 2015 at 07:38:10PM +0300, Andrew Senkevich wrote:
>> > during work on addition vector math functions to Glibc and discussions
>> > with community was found an issue with meaning of “#pragma omp declare
>> &g
> From: Andrew Senkevich
> To: GCC Mailing List ,
> openmp-...@dcs-maillist2.engr.illinois.edu, libc-alpha
>
> Cc:
> Date: Fri, 26 Dec 2014 19:51:05 +0300
> Subject: OpenMP vector function ABI for x86_64
> Hi,
>
> during work on addition vector math functions t
Hi,
during work on addition vector math functions to Glibc and discussions
with community was found an issue with meaning of “#pragma omp declare
simd” (which will appear in math.h).
Issue is there are no working way to specify ISA of vector function
in GCC 5.0, and hence no way to determine ex
On Wed, Nov 26, 2014 at 02:59:34PM -0800, Andrew Pinski wrote:
> This looks like the same issue as I reported before about
> check_consistency() since that is what is failing to assemble here
> too.
This is also fixed by this patch -
https://sourceware.org/ml/libc-alpha/2014-10/msg00746.html
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